Mountain Bikes

Mountain Bikes for Sale

Big Sky Bikes has the best mountain bikes for sale from the best brands and we have the expert staff to help you. Whether you are looking for an entry level mountain bike or a pro enduro bike we have it all. Our selection of Specialized and Santa Cruz mountain bikes are perfectly suited to Missoula's awesome terrain! Shop online or stop by our great location to see our mountain bikes for sale.

The P.Series P.3 doesn't put out fluff and sparkly stuff. It simply delivers a bombproof ride quality that mixes advanced technology and top-shelf materials with geometry that's proven in the street, park, and dirt.
It comes equipped with a Manitou Circus Sport fork up front, beefy Stout DJ cranks, powerful Tektro hydraulic brakes, and a construction that leaves no precaution unchecked. The P.3 can ride it all, from dirt to street.
- The frame is constructed from A1 premium aluminum in order to keep the overall weight at a minimum, while also ensuring that the bike is plenty tough to take a hit. And when it comes to cool features that make the difference, you get forged horizontal dropouts and integrated chain tensioners to keep the rear wheel locked in place, ISCG 05 to run chain guides, and a tough, forged shell surrounding the PF30 bottom bracket.
- Manitou Circus Sport features 100mm of air-sprung travel and stiff 32mm stanchions. You also get Manitou's acclaimed TPC rebound damper and a stiff, sturdy 15mm thru-axle.
- The Tektro hydraulic disc brakes slow you down when you need it most, but stay out of the way for even the most creative tricks.

Take a look at the world's strongest man, and you're not going to find some chiseled Adonis. You're going to find someone who has more volume. Behind the "extra" surface area, though, there's a man that can dominate a caber toss and run down the tarmac with a plane in tow. Mathematically, it could be broken down as more volume + versatility = dominance, and that's exactly what's at play with the Fuse Comp.
Our 6Fattie Wheel/Tire System uplifts the Fuse to have more traction and control than any hardtail before it, while its no-nonsense build is custom spec'd to get the job done, no matter how rugged, technical, or hair raising that job might be. Even better, this system also allows you the opportunity to toggle between 29-inch wheels (not included) and 6Fattie wheels, allowing the ultimate in configuration options for the trail at hand.
- M4 Aluminum with Smooth Welds proved to be the right material for the job, allowing a lightweight, durable frame with a low and slack geometry that's equal parts snappy and efficient on climbs and descents. It also allowed us to incorporate our exclusive Diamond Stay that accommodates the 6Fattie wheels/tires without compromising on our hallmark short chainstays that provide unrivaled handling and climbing prowess.
- A Manitou Machete 29/6Fattie fork features up to 120mm of plush, trail-taming travel. It's also air-sprung for smooth travel and low stiction, plus it has an adjustable rebound and compression lockout for more efficiency on the climbs.
- A durable SRAM NX 11-speed rear derailleur gives you reliable access to a wide range of gears.

Surly's Krampus rolls fast, holds speed, and devours corners. Surly built its Boosted frame and fork out of tapered and butted chromoly and gave the frame a long top tube and short chainstays, so it's playful, smooth, versatile, and durable. The 29 x 3-inch Dirt Wizard tires on 40mm Alex rims take your trail ride to new heights of fun. These big tires offer increased traction, incredible float, and reduce the need for suspension because the large volume is plenty to smooth the trail. You'll also get a SRAM NX 1x drivetrain, Answer Pro Taper bars, and SRAM Level hydraulic brakes to make you the new master of terrain that used to be out of bounds.

Years ago the Karate Monkey helped start the 29-inch wheel movement and, as time's gone by, many companies ­– Surly included – have experimented with even more wheel sizes.
With so many different types and sizes of tires now on the market, riders have begun to understand the effect that tire width has on overall wheel diameter, and with ample tire clearance, you can see the benefits of multiple wheel sizes all on one bike. 27+ tires have the same rolling diameter as a 29-inch wheel, yet you get all the traction and floatation benefits of extra-wide knobbies. And that's just the tires.
The Karate Monkey frame has recently gotten a makeover that includes the addition of features like internal dropper post routing, a new tubeset that uses the same trumpet tubes found on Surly's Instigator 2.0, and a slight tweak in geometry that is more progressive and trail-oriented. The Karate Monkey uses a horizontal dropout with a derailleur hanger that features Gnot-Boost spacing, which gives the rider the ability to run any kind of mountain bike hub they choose. 10 x 135mm QR, 12 x 142, or 12 x 148 Boost will all work in the Karate Monkey frame. The frame uses a 44mm headtube for broad fork compatibility and is ED coated for an added layer of internal protection. If, at any point, you decide you want to throw on some skinny meats, standard 29-inch wheels and tires can be swapped in with no issue. If you want to round-house kick some trail right in the face, the Karate Monkey is your sled.
- 100% Surly 4130 chromoly steel frame and fork; double-butted main triangle and 44mm headtube
- Adjustable rear dropouts with 145mm Gnot-Boost spacing. Works with 142, 148 12mm thru, as well as 135mm w/ 10/12 washer
- Internal dropper seatpost routing with 30.9mm seat tube ID
- Clearance for 29 x 2.55 or 27.5 x 3 tires

The Surly Pugsley may be the original fat bike, but this one is far from the original. Previously a great all-around fat bike, the Pugsley has been redesigned to be an ideal off-road touring and exploration rig. Surly lengthened the chainstays 12mm for stability when loaded and so your heels float effortlessly past panniers. The tweaked rear rack mounts on the dropouts let you center your rack over the wheel, despite the offset rear triangle. Those dropouts will take a 142x12mm thru axle if that's your schtick, but this rig comes with a 135mm QR hub, snug as a bug with a pair of adapter washers. Pugsley brings back the 135mm-spaced offset fork, so you can run a front wheel with a spare cog or freewheel as a bail-out option to swap with the rear if your internally-geared hub freezes up in neutral or you smash your derailleur having too much fun. A plethora of three-pack mounts give you gear-hauling options aplenty, and a Surly Moloko Bar gives your hands damn near as many options as well, so they stay clappably happy even on your longest, story-generating adventures.

BMC's Sportelite SE is your gateway to outdoor freedom. With 20 speeds from the quick shifting Shimano Deore/SLX drivetrain, you have plenty of reliable gears to choose from. A 100mm-travel RockShox fork absorbs the bumps and hits with ease while powerful Shimano disc brakes keep you confident. Lastly, the 27.5-inch wheels add that extra bit of confidence when just staring out. The bigger wheels roll over obstacles just a little bit easier. Outdoor freedom is yours, Sportelite is the ticket.

Wait—a long-travel trail bike that climbs well and goes hard on the trail? Yeah, we didn’t think it was possible either—until we designed the Enduro Elite. It’s plenty stiff, nice and snappy, and with 29" wheels, descends like a bike possessed. Meet your new trail buddy, buddy.
Our quest was to create the perfect long-travel trail bike, and it all began with a close look at the geometry. Basically, we modernized it— slacking out the front end, lengthening the top tube, shortening the chainstays, and lowering the bottom bracket. All of this together makes the bike truly feel glued to the ground, and the platform is more responsive and capable than ever.
We then added some crucial bits to make your ride, well, better. We're talking stuff like integrated storage with a SWAT Door at the down tube, a triumphant return to a threaded bottom bracket, and internal cable routing with guides that makes cabling super easy. And to keep the weight down, the frame is constructed with our legendary, tough-as-nails X-Wing layout with a FACT 9m carbon fiber chassis and M5 alloy rear-end. To guarantee high degrees of "shredability," this material choice is greeted by 160mm of plush front and rear travel, plus a geometry that can be "adjusted" via a shock extension with a "low/high" setting.
For the build, this Enduro is packed with drool-worthy gear, like SRAM GX Eagle 12-speed shifting, powerful SRAM Code R brakes, hand-built Roval wheels, and a FOX Rhythm 36 fork up front.
- The frame has an X-Wing layout with a FACT 9m carbon chassis and an M5 alloy rear-end. Together, these elements combine to form the perfect balance of low weight, responsive handling, and unparalleled strength. It's also been built off our 29 Geometry, which lends itself to running 6Fattie wheels and tires (only a 7mm BB drop), in order to provide an aggressive, well-rounded ride. And with internal Command Post IR routing, a return to a threaded bottom bracket, and an integrated SWAT Door at the down tube, you get a bike that's clean, dependable, and ready for anything that the trail has to offer.
- The FOX Performance Elite DPX2 rear shock features our Rx Trail Tune and plenty of cushion, ensuring that no matter the frame size, your bike is dialed-in perfectly.
- A FOX Rhythm 36 fork handles suspension duties up front with stiff stanchions, plenty of adjustability, and 160mm of travel.

Going fat isn't just a fun way to ride—it's a ride revolution. The security and control that the wheel system, found on our Fatboy, provides is unparalleled. You get dramatically more traction, grip, and floatation than with traditional mountain tires, all without sacrificing much to climbing efficiency.
The end result is easy to explain—you have way more fun. And to make sure of it, we built the Fatboy with a durable list of components that are low-maintenance and eager to perform season after season. Have more fun—go fat.
- The frame features an M5 alloy construction that provides the ideal blend of efficiency and durability, while the geometry creates a roomy top tube and short chainstays for easy climbing and confident descending.
- A FACT carbon fiber fork provides tons of compliance and absorbs chatter, while simultaneously keeping the overall weight of the bike down.
- The SRAM NX one-by groupset keeps things simple, and is ready to take on the trail for the long haul.

The ECR is Surly's answer to those times when you just need to escape to the woods for a while to get away from the humdrum of life. Those familiar with this steel mule know it’s designed around plus tires, previously of the 29” variety. A fully loaded 29+ bike is an excellent way to explore and get away for a while… if you’re of a certain stature that is. For smaller riders, it poses several challenges though. And no one wants new problems when they’re in the woods trying to escape old ones. To solve this, Surly redesigned the smaller sizes of the ECR to work with 27.5+ while the larger sizes are still equipped with 29+. All you medium specimens out there get your pick of the litter as Surly is offering that size in both options.
Other updates to the ECR include and are limited to: Gnot-Boost rear spacing and a killer new beige paint job. It retains the abundant accessory mounts that we all know and love like Surly Trip Guide for brakes and derailleurs, fender, rack, and Bill/Ted eyelets, and a Rohloff torque arm slot. The 29+ sizes have two water bottle mounts and one set of Three-Pack bosses. You’ve got lots of options to bring all your “necessities” with you and still have room for excess baggage if you’ve got it.

The trail can be a pretty intimidating place at first. Intimidating, that is, until you find the right bike to start ripping on. Specialized's Women's Rockhopper 29 — the perfect ride for you to find your confidence on the trail.
It starts with an A1 Aluminum frame that has optimized tube shapes which save weight while dramatically improving aesthetics. To go along with these clean new lines, the Rockhopper also has internal cable routing to further clean up the frame. Lastly, Specialized's Sport XC 29 geometry adjusts the reach, angles, and standover height to make for an improved fit across the size range. This is sure to keep you ripping and confident while heading both up and down the trail.
This Rockhopper comes with a build spec that places an emphasis on reliability. This means that it features a full Shimano drivetrain, no-fuss mechanical disc brakes, grippy Ground Control Sport tires that add traction over any trail, and an SR Suntour XCT 29 fork with a custom Multi-Circuit damping that eliminates the "pogo" feel commonly associated with coil forks. You'll also find that Specialized paid special attention to the needs of female riders, which is why every width and length of the components is tailored to women, while the Body Geometry Myth Sport saddle is sure to deliver comfort, mile after mile along the trail.
- The frame is constructed from lightweight A1 Aluminum in order to provide a compliant, durable platform to support the acclaimed Women's XC Sport 29 Geometry. Combined, you get a bike that's more than efficient on climbs and descends with equal aplomb.
- Custom SR Suntour XCT fork features 80/90/100mm (size-specific) of coil-sprung suspension travel that swings well above its weight class.
- The Shimano rear derailleur is built with durability in mind, so you can rest assured that you'll have a reliable shifting partner for the long trails ahead.

When it's time to blast through miles of singletrack, nothing beats the quick, lively feel of Santa Cruz's Highball hardtail. Santa Cruz has been at it for years with the Highball, and with modernized geometry this version rips better than ever. In keeping with today's preference for running a short stem and wide handlebar, Santa Cruz lengthened the front end to preserve an efficient pedaling position, and trimmed the rear to increase agility. The result is an aluminum cross country trail slayer that's easy to lift over obstacles and whip through tight turns, ultimately making you a faster rider.

What does ECR mean? Anything you want it to. Go camping, ride the Divide Trail, disappear into the woods, and conquer any road. Surly's ECR is a super capable camping machine/trail bike that's outfitted to explore wherever you point the front wheel. Surly's favored chromoly tubing damps road buzz and provides a nimble, responsive ride. The heart of the ECR is the 29+ wheel capability, with clearance for 29 x 3.0-inch tires. Fat tires mean smooth-rolling traction, stability to spare, and a touch of suspension over the roughest terrain. On top of all that, frame eyelets galore are just waiting for racks, fenders, and whatever else to make this your pedal-powered escape pod.

Say hello to Surly's rowdy, trail-shredding Instigator 2.0. The no-nonsense chromoly frame is made for charging hard and going big. It's super tough, yet handles nimbly and accelerates like mad. The heart of the bike is Surly's 26+ platform which has clearance for 50mm-wide rims and 2.75-inch tires, so you get endless traction and the rollover-action of a 27.5-inch wheel, coupled with the snappy, go-fast responsiveness of a 26-incher. The geometry is dialed for a 140mm travel suspension fork and features a long top tube and short rear end for more of the same fun. And this thing is versatile, the frame comes with dropouts for rolling singlespeed, or geared with a quick release or a 142x12mm through-axle with a Shimano direct-mount hanger.

Wednesday is a frame with a decade of Surly's Omniterra design experience distilled into one steel package. Wednesday can ride over the same type of pretty much anything all of their other Omniterra bikes can, but they borrowed elements from both their Trail and Touring categories to create an Omniterra ride that can truly handle anything you want to attempt. Want to point the thing down a mountain and roll those dice? Wednesday has geometry spry enough to get you through the techy stuff, stable enough for the fast stuff, and doesn’t feel sluggish when you have to ride back to the top. It also has the chops for any sort of expedition you may want to undertake. It has plenty of bottle mounts; triple bottle bosses on both fork legs and the down tube; standard bottle mounts on the seat tube and underside of the down tube; plus rack mounts on the frame and fork and fender eyelets on the dropouts, along with barrel bosses on the crown, fork legs and mid-blade, thru-blade eyelets on the fork as well. It also has internal dropper post routing and Surly Trip Guides to manage all the housing and cables on your frame with style. Wednesday also has its very own dropout design as well – a rear-facing, slotted dropout that can use either 10mm or 12mm axles and exit rearward or vertically. They’re cast steel and spaced at 170/177mm. Wednesday gives you a lot of options in the tire clearance category. In the full-forward, short chainstay position you can run 26 x 3.8? tires on 80mm rims and in the full-rearward, longer chainstay position you get the option of 26 x 4.6? tires on an 80mm rim. Wednesday is made out of Surly's own proprietary 4130 CroMoly steel and is ED coated for extra protection from the elements.

From rocky and rutted out sand traps, log- and root-covered ribbons of twisty singletrack, and miles of powdery snow, the Ice Cream Truck can handle it all. It's been redesigned for 2019 with frame tweaks that push the ICT more toward a full-on trail bike: shorter chainstays and a longer front-center make it more agile on fast, technical terrain. Highlights include stealth dropper post routing, a threaded bottom bracket shell, and Surly's versatile Universal rear dropout which allows the use of 197 x 12mm thru-axles or 190 x 10mm QR. Whether you dig the all-purpose nature of the rigid setup or want to add a suspension fork for rowdier outings, this monster truck's ready to jam.

The Wednesday is the result of over a decade of Omniterra design experience distilled into one steel package. It can easily ride over or through most anything our other Omniterra bikes can and then some. With the Wednesday Frameset, Surly borrowed elements from some of their Trail and Touring models to create an Omniterra whip that can truly handle anything you want to attempt. Want to point it down the side of mountain? Go ahead, roll those dice. And if you make it to the bottom, you’ll be able to ride back to the top for round two. Wednesday’s geometry is spry enough to get you through techy stuff, stable enough for the fast stuff, and doesn’t feel sluggish on terrain-crawling stuff.
While Wednesday is plenty confident on terrifying terrain, it also has the chops for any sort of expedition you may want to undertake. Surly gave it all the necessary braze-ons and mounts for whatever accoutrements you feel necessary in your travels. Racks? Front and rear, friend. Fenders? You got it. Bottle mounts? How does triple bottle bosses on both fork legs and the down tube, and two sets of standard mounts on the main triangle grab you? They even gave Wednesday internal routing for a dropper post and Surly Trip Guides to keep everything nice and neat and free of rat’s nests. In the dropout department, Wednesday uses a cast steel, rear-facing, slotted dropout that can exit either rearward or vertically. They’re compatible with either 10mm or 12mm axles and are spaced at 170/177mm.

The Ice Cream Truck goes where most other bikes can’t. Snow, rocks, mud, sand — you name it, and chances are, someone has ridden it on an Ice Cream Truck. Don’t let that terrain-crawling ability fool you into thinking the Ice Cream Truck is slow and sluggish, though. A long top tube (best paired with a short stem) and short stays make it trail-approved and ready to rip. And with 4.8” tires on 100mm rims, “trail” is relative. Show a snowman who’s boss, ride through a sand castle — all while riding the perfect get-away vehicle. Or you can stick to riding terrain that won’t ruin a child’s day.
It all starts with Surly's proprietary ED-coated 4130 CroMoly steel. ED coating provides a solid foundation for paint externally while adding a layer of corrosion protection internally. The Ice Cream Truck’s frame is symmetrically-spaced at 190mm and features Surly's MDS dropout system, so you have the option of running a 197mm thru-axle, 190mm geared or a single speed rear end. Each frameset comes with all three MDS chips so you can choose your own adventure. A 132mm wide PressFit 41 bottom bracket allowed Surly to play with the stays a bit more and move them a little further out, creating a much stiffer rear end. If you feel like swapping out the included suspension-corrected, straight blade fork, you’ll have plenty of options thanks to the Ice Cream Truck’s 44mm headtube.
In a world full of uncertainties, there’s one thing you can count on: Ice Cream Truck will really take you places. At least when it comes to riding a bike — it can’t do much to help you fix the rest of your life.

If you’re like us, your bike needs will likely change by the day, week, month, or year. Ogre can get you to your job during the week, then way out of town on the weekend. The latest version of the Ogre has received some fantasitic updates, including horizontal slotted dropouts with Gnot-Boost spacing, a tweaked non-suspension corrected geometry, and a beefier tire clearance — all in a 29er platform. The Ogre features Surly's Moloko handlebar offering hand positions that you didn’t even know existed and the ability to mount even more accessories. Ride it any day of the week; it’s not sluggish on pavement or gravel and can also hold its own on singletrack.
- Gnot-Boost spacing allows the use of 135mm QR hub, 142 x 12mm thru-axle, or 148 x 12mm Boost hubs.
- Full-length Surly Trip Guide housing line guides for derailleurs and brakes
- Two sets of bottle cage mounts
- Disc and rim brake compatible with removable post cantilever pivots
- Upper seatstay threaded barrels with mid- and low-blade fully threaded through-blade fork eyelets
- Threaded holes for racks, fenders, and trailer mounting nuts
- Rohloff OEM2 axle plate mounting slot
- Tire clearance for 29 x 2.5” or 27.5 x 3”

If you’re like us, your bike needs will likely change by the day, week, month, or year. Surly's Ogre can get you to your job during the week, then way out of town on the weekend. The latest version of the Ogre has received some fantastic updates, including horizontal slotted dropouts with Gnot-Boost spacing, a tweaked non-suspension corrected geometry, and a beefier tire clearance — all in a 29er/27.5+ platform. Ride it any day of the week; it’s not sluggish on pavement or gravel and can also hold its own on singletrack.
- Gnot-Boost spacing allows the use of 135mm QR hub, 142 x 12mm thru-axle, or 148 x 12mm Boost hubs.
- Full-length Surly Trip Guide housing line guides for derailleurs and brakes
- Two sets of bottle cage mounts
- Disc and rim brake compatible with removable post cantilever pivots
- Upper seatstay threaded barrels with mid- and low-blade fully threaded through-blade fork eyelets
- Threaded holes for racks, fenders, and trailer mounting nuts
- Rohloff OEM2 axle plate mounting slot
- Tire clearance for 29 x 2.5” or 27.5 x 3”

The Surly Pack Rat is designed around porteur-style racks and front-loading optimization, with a front cargo-specific design to eliminate steering issues. The fork features internal routing for generator hubs and rear frame dropouts to accommodate multiple drivetrain configurations. It’s an ideal choice for loaded commutes and bike trips with a lighter load, but also rides great when unloaded.
- 100% Surly 4130 Chromoly frame, main triangle is double-butted; 1-1/8" threadless brazed Chromoly fork
- Bosses front and rear for cantilever or linear-pull brakes, rack and fender eyelets at the dropouts, eyelets at the crown, and fully threaded through-blade fork eyelets for a front rack
- Semi-horizontal dropouts with a derailleur hanger for geared or singlespeed drivetrains and/or wheelbase adjustability

The venerable Karate Monkey. When it comes to mountain riding, this bike brings everything you need to the experience and more. It's shod with 27.5 x 3.00 terrain-clawing Dirt Wizards for max traction on singletrack thanks to an aggressive tread pattern and cushy, wide footprint. But there's more to this agile trail runner's set of shoes — thanks to generous frame clearance, you can drop a set of 29-inch wheels in with up to a 2.50-inch tire if you desire something with less bite and similar roll-over capabilities. And, with Surly's Gnot Boost rear dropout spacing, you can comfortably run any kind of mountain bike hub: 10 x 135mm QR, 12 x 142mm, or 12 x 148mm Boost will all work in the Karate Monkey frame. Wheel choices aside, Surly built the updated Karate Monkey with a nod toward modern trail-bike geometry and includes internal dropper post routing, two or three bottle mounts (depending on size), threaded fender eyelets, and all the braze-ons you've come to expect from Surly for attaching racks, cages, and bags galore. Running gear consists of SRAMS's rock-solid NX 1x11 drivetrain with full-length external housing and Level hydraulic disc brakes for reliability when you need it most. Throw on a 140mm suspension fork and this all-rounder turns into a serious trail slayer. For what seems like a simple bike at first glance, the Karate Monkey offers much, much more. Listen to the Monkey and lose yourself in its ways.

The Surly Lowside is the bike that gets you across town for a quick rip on singletrack, then over to the bar for a night out. It’s the bike you turn to when you’re not entirely sure what the night has in store. It’s the bike to grab when you want to have just as much fun riding to the trail as you do on the trail, itself. Singlespeeding is an integral part of Surly’s DNA, and the Lowside continues the tradition, by taking a simpler approach to trail riding.
- 100% Surly 4130 chromoly frame, main triangle is double-butted; 1 1/8" threadless chromoly fork
- Singlespeed "specific" (derailleur hanger: yes; Trip Guides: no)
- Dropper post routing
- Gnot-Boost rear spacing
- Front and rear thru-axles
- 26 x 3" or 27.5 x 2.8" tire clearance

The Surly Lowside is the bike that gets you across town for a quick rip on singletrack, then over to the bar for a night out. It’s the bike you turn to when you’re not entirely sure what the night has in store. It’s the bike to grab when you want to have just as much fun riding to the trail as you do on the trail, itself. Singlespeeding is an integral part of Surly’s DNA, and the Lowside continues the tradition, by taking a simpler approach to trail riding.
- 100% Surly 4130 chromoly frame, main triangle is double-butted; 1 1/8" threadless chromoly fork
- Singlespeed "specific" (derailleur hanger: yes; Trip Guides: no)
- Dropper post routing
- Gnot-Boost rear spacing
- Front and rear thru-axles
- 26 x 3" or 27.5 x 2.8" tire clearance

The Surly Pugsley may be the original fat bike, but this one is far from the original. Previously a great all-around fat bike, the Pugsley has been redesigned to be an ideal off-road touring and exploration rig. Surly lengthened the chainstays 12mm for stability when loaded and so your heels float effortlessly past panniers. The tweaked rear rack mounts on the dropouts let you center your rack over the wheel, despite the offset rear triangle. Those dropouts will take a 142 x 12mm thru axle if that's your schtick, but can also be used with 135 x 10mmm QR hubs with Surly's Adapter Washers. Pugsley brings back the 135mm-spaced offset fork, so you can run a front wheel with a spare cog or freewheel as a bail-out option to swap with the rear if your internally-geared hub freezes up in neutral or you smash your derailleur having too much fun. A plethora of three-pack mounts give you gear-hauling options aplenty, so go wild with your build.
- 100% Surly 4130 chromoly frame, main triangle is double-butted; 1-1/8" threadless brazed chromoly fork
- Four sets of Three-Pack Mounts (two on the fork, two on the downtube), a water bottle mount on the seat tube, and front and rear rack mounts
- 142 x 12mm rear dropout (or 135 x 10mm QR with Surly 10/12 Adapter Washers) with Rohloff torque arm slot
- 135mm-spaced fork with 17.5mm offset for wheel swappability
- 26 x 4.8" tire clearance in frame (with drivetrain restrictions), 26 x 4.3" tire clearance in fork

The new Women’s Stumpjumper ST uses new tube shapes and an asymmetrical design to ensure that you get awesome ride characteristics. So get ready, because the Women’s Stumpjumper ST Alloy 29 is sure to exceed your expectations of how a trail bike should ride.
- The all-new alloy Women's Stumpjumper ST frame features an M5 alloy front- and rear-end, an asymmetrical design, and our 29 Trail Geometry, so it's both capable and comfortable.
- The X-Fusion Metric rear shock features rebound adjustment, lockout, and our coveted Rx Trail Tune to ensure you're getting the most out of your Stumpjumper ST.
- A RockShox Recon RL provides 130mm of travel up front, and it lets you adjust both rebound and lockout.

No need to fret—we haven’t forgotten about all you alloy fans out there. In fact, the new Stumpjumper Comp Alloy 27.5 with a 12-speed SRAM NX Eagle may be the most radically designed alloy bike ever made. For real, though. And with new tube shapes and an asymmetrical design, it's going to exceed all of your expectations of how a trail bike should ride.
Our design goal for the new Stumpjumper was simple—build the ultimate trail bike, one that feels telepathic. And it turns out that this feeling all comes down to stiffness. Think of it this way: when the frame's telling your hands one thing and your feet another, your brain gets confused with the imbalance and the bike feels unstable. In order to fix this, we had to get to work on dialing-in the material and shapes.
We continued down the suspension path with a custom Rx Trail Tune on both the fork and rear shock. Suspension performance is highly dependent on frame, wheel, and rider size, so we use our Rx Tune to get each bike to land in the middle of the adjustment spectrum, and this gives you the biggest possible range to fine-tune your ride. Another focal point of the tune was matching the suspension characteristics between wheel sizes—we developed a specific Rx Tune for each platform. So, no matter what wheel size you prefer, you’ll get perfectly linear suspension.
Steps were also taken to make this bike easy to live with. Threaded bottom brackets make a triumphant return, and we made room for up to a 3.0'' tire. You're also free to run whatever aftermarket rear shock you want, since we're using standard metric shocks. And customization is furthered with a Flip Chip that lets you to dial-in your Stumpy to your riding style. Switch it from High to Low and it drops your bottom bracket 6mm and slackens the head tube by half-a-degree. Little details also jump out to surprise you, like a newly designed ribbed chainstay protector that makes chain slap a thing of the past and nearly silences the drivetrain.
The build on this Comp model comes with a list of components that deliver undeniable quality, like a 12-speed SRAM NX Eagle drivetrain, SRAM Guide R disc brakes, FOX front and rear suspension, and Roval Traverse 27.5 wheels.

We’ve heard it all before: “This bike’s for going fast, that one’s for having fun.” “This one pedals well, that one shreds.” Why not make one bike that does everything well? Well, we did, and it's called the S-Works Stumpjumper. Unrivaled handling and stiffness, sublime suspension kinematics, and a complete abandon of proprietary nonsense—it rides like a dream. And with 27.5-inch wheels, this model blends responsiveness with stability to create the pinnacle of trail performance.
Our design goal for the new Stumpjumper was simple—build the ultimate trail bike, one that feels telepathic. And it turns out that this feeling all comes down to stiffness. Think of it this way: when the frame's telling your hands one thing and your feet another, your brain gets confused with the imbalance and the bike feels unstable. In order to fix this, we had to get to work on dialing-in the materials, shapes, and the layout.
We started by creating our own mountain-specific stiffness test, and then we looked at the layout with Finite Element Analysis (FEA) to see where we could get the biggest stiffness improvements. This led to a big discovery: The Large and X-Large frames needed more front-end stiffness while the Smalls and Mediums were just fine. We were able to create a frame design that was 20% more efficient. And in the end, this proved to be one of the lightest trail frames on the market, today.
When designing the frame with the stiffness targets being a main goal, we developed a radical new sidearm design. The front-end and rear-end are connected at three points, and the sidearm helps keep all these points super stiff and connected, all while taking about 100 grams out of the rear-end. More explicitly, this minimizes frame flex when the rear suspension is active.
We continued down the suspension path with a custom Rx Trail Tune on both the fork and rear shock. Suspension performance is highly dependent on frame, wheel, and rider size, so we use our Rx Tune to get each bike to land in the middle of the adjustment spectrum, and this gives you the biggest possible range to fine-tune your ride. Another focal point of the tune was matching the suspension characteristics between wheel sizes—we developed a specific Rx Tune for each platform. So, no matter what wheel size you prefer, you’ll get perfectly linear suspension.
Steps were also taken to make this bike easy to live with. Threaded bottom brackets make a triumphant return, and we made room for up to a 3.0' tire. You're also free to run whatever aftermarket rear shock you want since we're using standard metric shocks. We revamped the SWAT box, too, making it sleeker, lighter, and with more volume. And customization is furthered with a Flip Chip that lets you to dial-in your Stumpy to your riding style. Switch it from High to Low and it drops your bottom bracket 6mm and slackens the head tube by half-a-degree. Little details also jump out to surprise you, like a newly designed ribbed chainstay protector that makes chain slap a thing of the past and nearly silences the drivetrain. Lastly, we seriously couldn’t make cable routing any easier on carbon models. Full tubes can be found throughout the carbon frame, so all you have to do is push the cable and it’ll come out the other end. No more lazy loop, hidden stashes of magnets, pokey spokes, or pillows to cry in.
As with every S-Works build, this S-Works Stumpjumper comes with only top-of-the-line parts, like a full SRAM XX1 Eagle drivetrain, SRAM Guide RSC disc brakes, FOX Factory front and rear suspension (150/150mm respectively), and the best carbon wheels money can buy, the Roval Traverse SL 27.5s.
- The Stumpjumper's asymmetrical, S-Works FACT 11m carbon fiber construction is lightweight, stiff, and ready to take on the trail. It's built off our 27.5 Trail Geometry, so it's just the right amount of both capable and comfortable. And with SWAT integration in the down tube, a threaded BB, easy cable routing, and an all-new chain silencer, it's ready for anything the trail, or you, throw at it.
- FOX FLOAT DPX2 Factory has three modes—Open, Trail, and Firm—that control large compression adjustments on-the-fly. There's also a tool to adjust compression adjustment that allows for fine-tuning of the compression in Open mode.
- The legendary FIT4 damper, large stanchions, buttery-smooth Kashima coating—the FOX 36 Factory 150mm fork is one of the best out there.